How do you evaluate $15-13+2$ ?

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Answer 1 · 2018-03-15T00:13:06

See below.

P.E.M.D.A.S.

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Addition comes before subtraction so we need to add $13$ and $2$

$13$ $+$ $2$ $=$ $15$

The new equation is:

$15$ $-$ $15$

All we have left to do is to subtract, so:

$15$ $-$ $15$ $=$ $0$

Our final answer is $0$

Hope I helped (:

Answer 2 · 2018-03-15T00:45:07

4

We use PEMDAS:

$color(red)(P)$ - Parentheses (also known as Brackets)
$color(blue)(E)$ - Exponents
$color(green)(M)$ - Multiplication
$color(green)(D)$ - Division (this has the same weight as M and so I gave it the same colour)
$color(brown)(A)$ - Addition
$color(brown)(S)$ - Subtraction - (again, same weight as A and so the same colour)

$color(brown)(A)$ and $color(brown)(S)$ have the same weight and so we work from left to right:

$15-13+2$

$=2+2$

$=4$

How do you evaluate 15-13+215-13+2?